HDMI Communication System for Electronic Devices and Methods Therefor

1 . A system, comprising:

a mobile communication device; and

a communication companion device to communicate with the mobile communication device, the communication companion device comprising a high-definition multimedia (HDMI) connector to couple to a remote device;

the mobile communication device and the communication companion device to exchange an authentication key to enable communication therebetween when the HDMI connector is coupled to the remote device;

the mobile communication device and the communication companion device to exchange the authentication key without input from a user.

2 . The system of claim 1 , the mobile communication device to, after authentication with the communication companion device, transfer data to the communication companion device for presentation on one or more output devices of the remote device.

3 . The system of claim 2 , the mobile communication device comprising:

one or more processors;

one or more motion sensors operable with the one or more processors; and

a user interface operable with the one or more processors;

the one or more processors to:

receive motion signals from the one or more motion sensors;

receive user input from the user interface; and

control the presentation on the one or more output devices of the remote device as a function of the motion signals and the user input.

4 . The system of claim 3 , the user input comprising actuation of a control button of the mobile communication device.

5 . The system of claim 1 , the communication companion device comprising a wireless communication companion device to wirelessly communicate with the mobile communication device.

6 . The system of claim 5 , the wireless communication companion device physically detachable from, and physically stowable within, a storage bay of the mobile communication device.

7 . The system of claim 1 , the communication companion device physically coupled to the mobile communication device by one of a cable or a communication bus.

8 . The system of claim 7 , the communication companion device physically stowable within a storage bay of the mobile communication device.

9 . The system of claim 1 , the mobile communication device comprising:

one or more processors;

a memory device operable with the one or more processors, the memory device comprising at least some non-volatile memory;

a communication device operable with the one or more processors;

the authentication key stored in the at least some non-volatile memory.

10 . The system of claim 9 , the communication companion device comprising:

one or more other processors; and

an other memory device operable with the one or more other processors, the other memory device comprising at least some other non-volatile memory;

the authentication key also stored in the at least some other non-volatile memory.

11 . A method, comprising:

detecting attachment of a high-definition multimedia (HDMI) connector of a communication companion device to a remote device;

authenticating the communication companion device with a mobile communication device without user input; and

transferring data from the mobile communication device to the remote device.

12 . The method of claim 11 , the authenticating comprising verifying an authentication key is stored in non-volatile memory of both the mobile communication device and the communication companion device.

13 . The method of claim 11 , the data comprising photos.

14 . The method of claim 11 , the data comprising music.

15 . The method of claim 11 , the data comprising multimedia content.

16 . The method of claim 11 , further comprising presenting the data on one or more output devices of the remote device.

17 . The method of claim 16 , further comprising using the mobile communication device as a control device to control presentation of the data on the one or more output devices of the remote device.

18 . The method of claim 11 , further comprising also detecting attachment of the HDMI connector to the mobile communication device and, after the also detecting attachment, placing one or more processors of the communication companion device in a low-power or sleep mode.